Edition du 24/02/09
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U508218-e Revision : 2
8
3.6. TROUBLESHOOTING.
Table 1 is used to assist in locating problems and making repairs and corrections. In some problems,
similar defects can be produced by several causes of an entirely different nature. Cause of the trouble
must be determined and the correction made.
Table 1. Troubleshooting
TROUBLE
POSSIBLE CAUSE
CORRECTION
1. Drive shaft hard to turn
Pointer or brake rubbing on first wheel.
Dirt or pieces of foreign material in
teeth of drive shaft gears, gear plate,
totalizer or bevel gear train driving
totalizer
Check pointer and break positioning.
Adjust as required.
Remove case. Check all gears, clean
and lubricate as necessary. See
Section
3.
2. Binding occurs during reset
cycle.
Missing washers on outside of clutch
shaft.
Pinion jam, anti-topping finger( s)
broken or spring(s) missing.
Check end play and washer as
required.
Check end play of wheel shaft.
Replace broken anti-topping fingers or
missing
springs.
3. Reset knob turns hard
Reset knob flange on the case binds
on reset shaft.
Wheel shaft group is bent.
Reset fingers rubbing on wheel or
retaining rings.
Remove reset knob. Loosen flange
screws, center the flange on the shaft
and tighten the screws.
Replace wheel shaft.
Check for missing retaining rings on
reset finger and wheel shafts. Replace
as required.
4. Any one wheel will not
reset to zero
Broken reset finger.
Locking disc pin out of wheel groove.
Replace reset fingers as required.
Disassemble wheel group and insert
locking disc pin into groove in wheel.
5. Incomplete reset cycle.
Knob turns but reset does
not occur.
Key in large multiple cam broken.
Reset actuating lever not engaged m
cam or reset arm broken.
Replace cam with new cam and key.
Remove cam, inspect and replace
parts as required, and assemble
properly.
6. Shutter partially obscured
wheels at completion of
reset cycle or completely
covers wheels at end of
reset cycle.
Shutter disconnected from reset lever. Connect shutter to reset lever.
7. Shutter will not drop into
place or loss of detent
action during reset.
Detent lever spring missing or broken. Install new spring
.
8 Pointer not aligned with unit
wheel.
Improper adjustment of brake or
pointer.
Adjust brake to proper clearance.
Adjust pointer to center mark
.
9. Unit wheel can be turned in
reverse by hand.
Dirty drive shaft clutch assembly.
Clean clutch group and lubricate. See
Section 3.
10. Cannot drive meter
register.
Pinion jam, reset fingers are engaged,
heart cams hit on detent lever shutter
stud, clutch not engaged
.
Check washers on pinion shaft. Check
end play of shafts. Clean and lubricate
clutch.
